Add amount paid

Amount paid colum is added to ticket purchase to keep the record of money paid by the user.
It is added to physical_ticket#index to show admin, price paid by each user for each ticket.

app/models/ticket_purchase.rb

@@ -52,7 +52,8 @@ class TicketPurchase < ActiveRecord::Base
       purchase = new(ticket_id: ticket.id,
                      conference_id: conference.id,
                      user_id: user.id,
-                     quantity: quantity)
+                     quantity: quantity,
+                     amount_paid: ticket.price)
       purchase.pay(nil) if ticket.price_cents.zero?
     end
     purchase

app/views/admin/physical_tickets/_physical_ticket.html.haml

@@ -0,0 +1,16 @@
+%tr
+  %td= physical_ticket.id
+  %td= physical_ticket.ticket.title
+  %td= physical_ticket.user.email
+  %td= humanized_money_with_symbol physical_ticket.ticket_purchase.amount_paid
+  %td
+    .btn-group
+      = link_to 'Show',
+      conference_physical_ticket_path(conference.short_title,
+                                      physical_ticket.token),
+      class: 'btn btn-primary'
+      = link_to 'Generate PDF',
+      conference_physical_ticket_path(conference.short_title,
+                                      physical_ticket.token,
+                                      format: :pdf),
+      class: 'button btn btn-default btn-info'

app/views/admin/physical_tickets/index.html.haml

@@ -21,23 +21,11 @@
             %th ID
             %th Type
             %th User
+            %th Paid
             %th Actions
           %tbody
             - @physical_tickets.each do |physical_ticket|
-              %tr
-                %td= physical_ticket.id
-                %td= physical_ticket.ticket.title
-                %td= physical_ticket.user.email
-                %td
-                  .btn-group
-                    = link_to 'Show',
-                    conference_physical_ticket_path(@conference.short_title,
-                                                    physical_ticket.token),
-                    class: 'btn btn-primary'
-                    = link_to 'Generate PDF',
-                    conference_physical_ticket_path(@conference.short_title,
-                                                    physical_ticket.token,
-                                                    format: :pdf),
-                    class: 'button btn btn-default btn-info'
+              = render "physical_ticket", physical_ticket: physical_ticket,
+                conference: @conference
   - else
     %h5 No Tickets sold!

db/migrate/20170924190528_add_amount_paid_to_ticket_purchases.rb

@@ -0,0 +1,5 @@
+class AddAmountPaidToTicketPurchases < ActiveRecord::Migration
+  def change
+    add_column :ticket_purchases, :amount_paid, :float, default: 0
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170816203325) do
+ActiveRecord::Schema.define(version: 20170924190528) do
 
   create_table "ahoy_events", force: :cascade do |t|
     t.uuid     "visit_id",   limit: 16
@@ -504,6 +504,7 @@ ActiveRecord::Schema.define(version: 20170816203325) do
     t.integer  "user_id"
     t.integer  "payment_id"
     t.integer  "week"
+    t.float    "amount_paid"
   end
 
   create_table "ticket_scannings", force: :cascade do |t|